Mineralogy Database

Welshite Mineral Data

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General Welshite Information

Help on Chemical  Formula: Chemical Formula: Ca4Mg9Sb3O4[Si6Be3AlFe2O36]
Help on Composition: Composition: Molecular Weight = 1,746.53 gm
   Calcium     8.74 %  Ca   12.23 % CaO
   Magnesium  10.91 %  Mg   18.09 % MgO
   Manganese   3.68 %  Mn    4.75 % MnO
   Beryllium   1.67 %  Be    4.64 % BeO
   Aluminum    2.38 %  Al    4.50 % Al2O3
   Zinc        0.15 %  Zn    0.19 % ZnO
   Iron        4.16 %  Fe    0.21 % FeO /  5.71 % Fe2O3
   Silicon     8.96 %  Si   19.16 % SiO2
   Antimony   21.12 %  Sb   28.06 % Sb2O5
   Arsenic     1.59 %  As    2.43 % As2O5
   Oxygen     36.64 %  O
             ______        ______ 
             100.00 %       99.98 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Be3.24
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Langban, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Wilfred R. Welsh (1915-?), amateur mineralogist and teacher of natural sciences.
Help on Name Pronunciation: Name Pronunciation: Welshite Say WELSHITE